Laying-on apparatus for book-fastening machines



Jam 5, W23. 1,458fi26 u. BISCHOF LAYING-ON APPARATUS FOR BOOK FASTENINGMACHINES Filed Dec. 13 1920 5 Shqets-$heet l wyi June 5, 1192311,458fi26 u. BISCHOF LAYING-ON APPARATUS FOR BOOK FASTENING MACHINESFiled Dec. 1-3 1920 5 sheets-Sheet 2 Q 5. I O M 2/ 22 0 0 5 .93 O O a?.29 3 I; I 30 i Al 1' G r g 7.9 I I 59 I LBJ 10 2 a sk June 5,3923.EA-EfifiZG u. BISGHOF LAYING-ON APPARATUS FOR BOOK FASTENING MACHINESFiled Dec. 15, 1920 s Sheets-Sheet 5 Patented June 5, 1923.,

name

ULRICH IBISCHOF OF HQBGEN, SVVITZERLAND, ASSIGNOR TO GEBR. STAUBLI, EHORGEN, SWITZERLAND.

Application filed December 13, 1929.; Serial 110,430,358.

To aZZ whom it may concern:

Be it known that I, ULRICH Brscnor, a citizen of Switzerland, residingat Ii'orgen, in the canton of Zurich and Republic of Switzerland, haveinvented certain new and useful Improvements in Laying-On Appa ratus forBook-Fastening Machines, of which the following is a specification.

In the known book fastening machines comprising one or more movableworktables, the sheetsmust be laid at the proper time upon the worktablewhen the latter is'inits extreme position. It is obvious that the outputof the machine is very considerably dependent upon the attention and theskill of the operator laying on the sheets, because there is only a veryshort time available in each working cycle of the machine, for layingthe sheet on to the moving worktable of 1 the machine. I

With the improved laying on apparatus, the time available for thispurpose is much longer, so that'the above mentioned drawbacks areobviated or at least considerably diminished.

According to this invention the machine is provided with an auxiliarytable upon which the sheets are laid during the working cycle of themachine table. I The sheets situated upon the auxiliary table are thentransferred by a conveyor automatically on to the machine table wherethey are usted into their proper position immediately the latterhasassumed the suitable position for this purpose.

The accompanying drawings illustrate by way of example an embodimentofthe improved laying-on apparatus in combination with a machine forfastening the sheets together bymeans of thread.

1 Fig. 1 isa side elevation thereof viewed in. the direction ofthe arrowB in Fig. 2.

Fig. 2 is a front elevation viewed in the direction of the arrow A inFig. 1, and

Fig. 3 is a side elevation viewed in the direction of the arrow C inFig. 1.

Fig. 4 is a side elevation of the slide block, and i i Fig. 5 is a frontelevation thereof.

1 is the machine frame 2 is the main shaft mounted in the latter, withthe cam 3 in which there. engages an anti-friction rollerv 5 carried bythe rocking lever 4. The shaft .2 is carried inbearings in the frame 1.Thedriving pulley is not shown. The shaft '7 that carries the rockinglever 4 rests in bearings 8 in the frame. This lever carries atits freeend arope pulley 9 for a purpose hereinafter described. On a shaft 10mounted in the machine frame there is fixed by means of theiar ns '18,19, the machine table 11 in which the .rod 12 is mounted together with,the thread layer '13requir'ed for forming theknoti The piercing needles,

not shown, are' also mountecl inf'th'e machine T On the machine table 11there is supported in a bracket 20, a rod 21' on which are fixed fourfingers 22 and levers 23,24. A spring 25 fixed'at one end to the table11 and at its other endt ov the lever 23, has a tendency to press thelever '24 against a stop 27 fixed on the hereinafter described shaft26.In the bracket 20 there is mounted a rod '27slidabl'e in the directionof its length, which carries an arm 28,,an arm 30, and a sheet stop 29.The rod 27 is rotated'by a; spring 31 (fixed at one end to the bracket20'), in, such a manner that the sheet stop 29 presses against the tablesurface. 32 which bears upon the cam; 34 fixed tothe stitching bar 33.This cam causes in the inward and outward strokes, of the machine table11, a movement of therod27, and consequently of the sheet stop 29togetherfwit-h the arm 30. i

.On the machine. frame 1 there is arranged by means of a bracket 35, anangle-shaped auxiliary table 36. In this bracket there is also mounted.a rod 37 on which'the're is situatedacompression spring 38 and a setcollar 4-0 that serves as a stop "for the said spring. In vthe brm ket3,5, as well as in a bracket 41 fixed to, the other end ofthe machineframe, there is mounted the hereinb efore referred to shaft 26 lwithspring 42, the latter bearing at oneend against the stop 27 and atfitsother end against a. slide block 43. This slide block has a'downwardlydirected guide arm 39 engaging over the rod 37, and slides by means ofarib in a groove '41 in the auxilary table; 36, aswell as in. a groove 43of the machine table 11, connected-to the groove 41, A clutch v44 servesto couple a wire rope 45 to the slide block 43. This wire ropepassesover the guide pulleys46, 47 mounted on the left portionfof thev machineframe, and also overthe aforesaid pulley 9 mounted on the rockinglever4,. and .it terminates at ,a pin 48 fixed to the. said rock- The arm 28carries a roller ing lever. From the foregoing will be 7 understood thatthe oscillations of the lever 4 will cause through the medium of thewire I rope 45,.the slide block 43 to movev to and fro.

The needle apparatus for fastening together the sheets'with threadconsists of the It the needles 53.

needle bars 49 guided in'the bracket46' with The needle barsreceive anup-and-down motion in the usual manner, p The operation of the apparatusis as follows,:

The sheet 51 to vbe fastened is laidby' the operator upon the fixedauxiliary table 36 whilst the machine'is in operation. Then in a knownmanner (not forming part ofthis invention) the machine table 11 receivesa rocking motion around the axis 10. The arrangement is such that whenthe table 11 assumes the position shown in Figs. 1 and 2,

the cam 3 will cause, the rockinglever 4, 5 to assume its lowestpositior'nand through the medium'of vthe rope 45 the slide block 43 willbe moved quickly to'the left. This slideblock in its turn pushes thesheet 51- lyingon the auxiliary table36,'out of thepo sition vshown infull'line's over on to the .machine table 11 where it strikes againstthe stop 29 mounted on the rod27 (see position shown inbroken lines).Immediately thereupon the slide'block 43 is moved by the spring 42 backinto its formerposition on ion the auxiliary table, one of the two stopsthe auxiliary table .36. This is made posv sible'by the factthatthecam'3 raises the arm 5 with the roller 9 and thus loosens the wire rope.When the slide block43i'sa'gain approaching its extreme right handposition 49" of the former engages underneath the sheet which has beenlaid inthe meantimeby the operator upon the auxiliary tabl'evand bearsagainst the stop 50 (Figs. 1, 3 and 5). I The stop 49' now slidesunderneath the sheetiso that in the next left hand stroke of the slideblock 43, the sheet will be taken alongby its upwardly directed stop 52.

' When in the first mentioned left hand stroke of the slide block43, thesheet has reached the stop 29, the machine table 11 is caused to beginits inward rockingmove- 7 ment in the usual manner, so thatthe roller 32mountedl'on the arm 28 slides along the cam 34 with the result' that therod 27 carrying the arm28, is moved together with the stop 29 a slightdistanceto the right. This small movement designed for the purpose thatifthe sheet should have jumped back owing to its previous strikingagainst the a stop 29,"the said sheet will be push-ed the lastmentionedshort right hand movement,

I into its proper nosition on the machine table.

' When this is done,the fingers 22" fixed on the rod 21 press the sheetthat has just been laid'in, against the table or its top edge, in orderthat it shall not be liable'tobecome machine table.

shifted? This i effected b the vea that the arm '24 fixed on the rod'2l,in the inward rocking movement of the machine table 11',

'. leaves thestop '27 that is mounted onthe rod 26, whereupon the spring25 by means of the lever 23 turns the rod 21 to such an extent that thefingers.'22"-will press the sheet against the table. 7

' hen the machine tablell has come into its innermost position, theneedle apparatus effects in the usual manner the ,fastening of thesheets, whereupon the table 11 "is moved aga noutwards, andthe cycle ofoperations upon the auxiliary table may alsojbe-efiected by a mechanicalfeeding apparatus, What'I claim is 1 In abookfastening'jmachine, thecombination of a movable machine tableupon I which the sheets tobeifastened are laid, with an auxiliary table for. receiving the-freshsheets, a slide block for conveying the fresh sheets fromthe auxiliarytable onto the machine table, means for moving saidslideblockjto-and-fro,and movable stops on the machine table'forvadjustingthe sheets in their proper'position on the machine table. 2. Ina book fastening machine, the combination of amovable machine table,with a stationary auxiliary table, a slide blockrfor conveying. thefreshsheetsfrom the auxiliary table on to the machine table, androck- 165,

ing "arms mounted on the machine" table for holding ownfthe sheetsconveyed on to the said machine table. I"

3. In a book fastening machine, a movable machine table, a stationaryauxiliary table, having grooves,a slide block movable over both" tablesfor conveying the fresh sheets, said slide block having wedge-shapedextensions sliding in the grooves in said auxiliary table, and havingalso an upwardly directed stop, whereby, when theslide block is movingtoward the auxiliary table the said extensions engage under thesheetlocated thereonyand thus produce a sliding of the slide blockunderneath said sheet, and inthe vsuccessive movement of the slide blocktowards the machine table, the stop carries along with it the sheet thatis movable on the auxiliaryable. v r

4. In abook fastening machine, a movable machine table, a stationaryauxiliary table,

a slide block slidable over bothftables, a stationary rod-on which theslide block is 'slidably mounted, a compression spring mounted on saidrod, a flexible tensile device-,grooved rollers for'guiding the tensiledevice, aro'cking lever with anti-friction roller, and a cam foroperating said rocking lever, one end of the tensile device beingconnected to the slide block, and its other end being connected to therocking lever.

5. In a book fastening machine, a rocking machine table, a shaft mountedthereon, spring-controlled arm fixed on said shaft, for pressing thesheets down upon the machine table, a lever fixed on said shaft, and astop located on the machine frame for the last mentioned lever.

6. In a book fastening machine, a rocking machine table, a rod slidablymounted thereon, a stop fixed on said rod for the sheets that have beenconveyed on to the machine table, a compression spring for bringing thestop into a determined position, an arm fixed on said rod, carrying ananti-friction roller, and a fixed cam along which the anti-frictionroller slides When the machine table rocks forwards, for the purpose ofplacing the sheet that has been conveyed from the auxiliary table on tothe machine table, into the proper position on said machine table.

Intestimony whereof I have afiixed my signature.

ULRICH BISCHOF.

